35. a2d2  35... f8c8  36. d2a2  36... c8f8 Repeating moves, but of course, Praggnanandhaa isn't interested in a draw. 37. d6d1 Preparing to attack the a-pawn again. To protect it, Black should double rooks on the a-file, but this time both 37...Ra7 and 37...Ra6 have tactical problems.